title: Development of an ion attachment mass spectrometer for direct detection of intermediates in combustion flames.
abstract: A system with Li+ ion attachment (IA) ionization has been developed for the direct detection of intermediates formed in burning flames by mass spectrometry. Dimethyl ether (DME) among alternative fuels was selected as a test substance to examine the capability of the system. As a result, intermediates generated in a premixed DME-air flame were directly detectable as Li+ adduct ions. By moving the burner on an X-Y stage, spatial distribution profiles of different species, including unburned DME and formaldehyde, were obtained for three types of flames: diffusion, partially premixed, and premixed.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Torii
authors.forename: Takashi
authors.initials: T
authors.lastname: Nishimura
authors.forename: Megumi
authors.initials: M
authors.lastname: Nakamura
authors.forename: Yoshiro
authors.initials: Y
authors.lastname: Shiokawa
authors.forename: Kozo
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Kuniyuki
authors.initials: K
authors.lastname: Kitagawa